Die



July 23, 1940.

J. SCHNEIDER 2208858 DIE Filed Jan. 2, 1936 2 Sheets-Sheet 1 23, 1940. J. SCHNEIDER 2208,858

DIE

' Filed Jan. 2, 1936 2 Sheets-Sheet 12- Patented July 23, 1940 DIE John Schneider, Cincinnati, Ohio, assignor to '1he Louis G. Freeman Company, Cincinnati, Ohio,

a corporation of Ohio Ahplication January 2, 1936, Serial N0.57296 20 Glaims.

This invention relates to shoe maohinery and more pa'rticularly to improvements in dies for use in ornamenting shoe nppers and shoe paros by forming cutouts or perforations in portions thereof.

A oonventional form of die for these purposes comprises a base upon which is mounted. a plurality 0f cutting or perforating membersyand. a stripper plate mounted slightly in advance of a plane through the cutting edges of the cutting members.

The cutting members may in themselves be individually formed to produce ornamental cutoi1ts in the work, or they may take the form of a plurality of perforating punches or tu.bes arranged in an ornamental design. These members ar-e usually carr-ied by a p1ate variably designated in the art as a cutter, taube or punch plate, which is secured 130 the base, and there may be, although not necessarily, a sub-plate interposed between thetube platze and the base in order adjust the efiective height of the cutters with respect to the base, being of any desired thickness, necessary 1:0- efiect 1;he result. The sub-plate also functions to receive the impact transmitted through the nutters or tubes, during the cutting operation.

Thestripper platte is customarily mounted resiliently or depressibly upon the base and forms a supporting surface for the work, when the cutters project upwardly. When pressure isapplied, the cutters are forced through the work, the stripper er work support yielding permit sa1ne, and upon its return 130 normal position, it strips the work from the cutters.

Whi1e in a conventional structure the several parts are separably attached 110 each other, by means of screws o1 holt-s, considerable time and the use of too1s is required 130 remove o1 separate the parts, such removal being sometimes necessitated fo1 repair o1 replacement of a cutter memher or of the stripper plate.

It is an objeot of the present invention to provide a die of the type described, but of improved construction, which will permit rapid detachment of the stripper or Work support when desired, and without the use of 130015;

It is a further object to providea st ructure which permits rapid detachment not only, of the stripper plate, but of the cutter.or tube p'1ate, thus providing ready access to any part of the structure without the use of too1s, at a minimum expenditure of time, and also 130 faeilitate rep airand rep1acement of the cuttingmembers.

T0 this end a novel mounoing f or the. stripper is utilized, in which the resi1ient studs, normally 1 L' secured the stripper plate are detached. therefrom, but engageable therewith, and are mounte d in the base independentlj of the stripper, Which is provided with suppoiting means arranged. to be latched to the base.

Similarly the cutter or tube platze is mouhted 5 130 be latched in the base, but in such a manner as to be quickly released therefrom.

Afurther object contemplates the provision of a common latch'mg meansfor bofih the cutter -p1ate and stripperplate.

T0 the attainment of1 the foregoing and other objects which will appear as the description proceeds, reference may be made to the accompany- %rwinga in which:

Fig. 1 -is a top plan view of an assembled die;

Fig. 3 is a fragmiantary section on the line3 3 of Fig. 1;

Fig. 4 is a top p1anoi th e die blockproper, with the stripper removed; arid Fig. 5 is a perspective 0 5 the cornplete stfneture showing the parts in disassembled relation Referring now more 'particularly to the-drawings in which 1ike reference numerals d'6signate -lik parts the die illustrated comprises, a@bafse p1ate I El to which is secured a sub-plate H in any convenient manner as by screws l2. The herein described em'oodimentof die also includes a tiibe plate I3 carrying c1ltting members Hi(i1lustrated as tubes or pur mhes) and. a stripper p1ate for work support !5 upon Whidh iS=fnounted an -edge gage I6, for accurately locating the work relative to the cu.tters.v

The tube plate l 3 may Support Lany desired form of cutting or punching membersin accord arme with the pattern to be placedin th e workin 1ieu of the tubes H3.

The sub-plate H and base p1ate II! are of (zonrse suitably periorated in a conventional mannei' 'to accdrd With {ohe fopenings of the tubes I4ihz1feby H permiting passae of cuttings o1 chips completely through the die, as indicated in Fig. 5.

.Ihe base l!) is fo'rmed With re'cessed orimlled v v out portions H ab opposite ends, which pdrtions form slots in conjunctionwiththe Sub-plate II,

said sub-plate being of a lengthcoextensive With that of the base plabe H]. Levers o1 arms I8 designed 110 func;tion as latches, are-pivoted a1; I9 to adjacent cornersof the base plate, and are made of a size and shape to fit within and.substantially fi11 the slots I1. provided at each end Of the basep tf L 13118 P forations being so 1ooat ed as. to partia11y intersect the recesse i poxtiom I'( WherebYW hen the levers A series of per'f0rations 20 .is'

I 8 are fully within the slots or recessed portions I'I they will extend at least partially across the perforations. The sub-plate I I and tube plate I3 are similarly perforated at 2I and 22 respectively, such that when assembled upon the base plate I II the perforations 2B, 2I and 22 will be aligned.

The number of perforations in the cutter plate I3 is less than that of the sub-plate am]. base plate, being replaced in part by grooved or slotted plus 23 extending from the plate I3 for projection into certain of the perforations 2I and 20.

The grooved portions 24 of the pins 23 areso which are recessed at 28, these pins being located for projection into the remaining perforations 20, 2I anal 22, and the recesses 28 being positioned to receive the overhanging edges of the respective latches I8.

Instead of the usual spring studs normally seured to the stripper plate, studs 29 surrounded respectively by springs 30 are mounted in the base for yielding vertical movement, being secured against detachment from the base by screws 3I. The length o1 these studs and the strength of the springs is such as to prbject the enlarged heads of the studs 29 through openings 32 in the sub-plate I I and openings 33 in the tube plate I3, to abut or bear against the stripper plate anal support Same in a plane slightly in advance of the plane of the cutting edges of the tubes I I. The cutaway portions 28 of the studs 21 are of sufiicient length to permit normal stripping movements cf the plate I during cutting operations.

The gage I6 is illustrated. as an edge er abutment gage attached by screws to the stripper plate, but may be any conventional type of gage well known in the art, e. g. clamping mask, or resilient pin gage, or it may be omitted; and instead of being screw fastened to the stripper plate may be mounted thexeon in any customary manner; if a resilient pin gage is employed, the pins may be carried by the base plate, t0 extend through the stripper -in a manner similat to the studs 29.

Any convenient form 0f vvork holder may be mounted upon the stripper plate as desired, spring fingers 34 being illustrated in the present embodiment.

Having thus described my invention, the operation and advantages thereof will be readily apparent.

The tube 0r cutter plate and the stripper plate will be assembled by inserting the plus 23 and 21 in the proper perforations and latching them in position by means of the latching levers I8 and the device is ready for use.- When lt is desired to rerriove the plate I5, and/or the plate I3, as sometimes becomes necessary in repairing er replacing a damaged part, all that is necessary is to swing the levers I8 outvvardly, and either of these plates can be readily detached without the time and effort required to unscrew the conventional securing means and without the requiren'1ent of tools.

The tube er cutting plate ean be removed readily for the replacement of a sir'1gle tube, er as .independent Qf said stripper, for resiliently mounting sai d stripper for yielding movement relative to said plate, when said stripper ancl plate are latched to said base.

2. A die comprising a base, cutting elements on the base, a work supporting stripper plate, spring pressed pins mounted upon the base in discomiected relation to said stripper plate, and

having portions engageable With the surface cf the plate acljacent the base, and effective normally to support said plate slightly in advance 0f the cutting elements, and latching means upon the base movable into and out of latching engagement With said plate, for detachably securing the plate to the base anal in engagement with the pins.

3. A die comprising a base, a cutter plate carried by the base and having cutting elements mounted thereon, a stripper plate, means to support said stripper plate in an operative relation to said cutting elements, said cutting plate and stripper plate each having a portion extencling toward said base, and means common to said plate, pivoted on said base for movement into latching engagement with said extending portions.

4'. A die compris'ing a base, a cutter plate sarried by the base and having cutting elements mounted thereon a stripper plate, means to Support said stripper plate in an operative relation to said' cutting elements, said base being provided with perforations, said cutter plate anal stripper plate each having notched projecting portions positioned for entry into the perforations of the base, and means common to said plates, engageable with said portions to latch both plates to the base.

5. A die comprising a base, a cutter plate on the base carrying cutting elements, a work supporting stripper plate, spring pressed pins mount ed upon thebase in disconnected relation to said stripper plate, having portions engageable with the surface of the stripper plate adjacent the base, and effective normally to support the stripper plate slightly in advanoe 0f the cutting elements, and interengaging means upon the stripper plate and base movable into anal out 0f latching relation, for detachably securing the stripper plate in position upon the pins.

6. A die comprising a base, a cutter plate on the base carrying cutting elements, a work supporting stripper plate, spring pressed pins mounted upon the base in disconnected relation t0 said stripper plate, having portions engageable with the surface of the stripper plate adjacent the base, and efiective normally to support the stripper plate slightly in advance of the cutting elements, and interengaging means upon the cutter plate, stripper plate and base movable into and out of latching relation, for detachably .securing both plates in position upon the pins. 7. A die cemprising a base, a cutter plate carried by the base and having cutter elements mounted thereon, a stripper plate"me'ans' tzo support said stripper plate in an operative relation to said cuttzing elements, said base being provided witzh perforations, said cutter platze and stripper plate each having notzched projec'tirig portions positioned for entry into the perforations of the base, and latohing arins common to said'projec't- '1ng portions pivotzally mounted on said base ior movement into latching engagementz with said notzohed portions.

8. A die comprising a base, a sub-plate carried thereby, a cutter plate adapted for assemblage witzh the base and sulo-plate, and having cutting elements mounted thereon, a stripper plate, means t support said stripper platze in an operative relation to said cutting means, said base being provided with perforations, and said outter plate having projecting portions positioned for entzry into certain of the perforations of the base and sub-plate said cutter plate being provided with perforations loeateol for alignment with certzain others of the perforatzions in the base and suloplate and said stripper platze having a projectzing portion positioned for entry intzo the latzter perforations, and means engageable with said projecting portions to latch both the cutter plate and stripper plate in quickly detaehable, assembled relation to the base.

9. A die comprising a base having recesses at itzs end, a platze secured to said base with ends in projecting relation to said recesses and forming aslotz with each of said recesses, a platze having the cutting elements mountzed thereon, means on said platze extending into said slotzs, and means operable in said slots for latohing said extending means to said base.

10. A die comprising a base having recesses at its end, a platze secured tzo said base Witl1 ends in projecting relation tzo said recesses and forming a slot witzh each of said recesses, a plate having the cutting elements mounted thereon, means on said plate extending into said slots, a stripper, means on said stripper extending into said slots, and means operable in said slots for latclung all 0f said extending means to said base.

11. A die comprising a base having recesses atz its end, a plate secured t0 said base with ends in projecting relation to said recesses and forming a slot with eacl1 of said recesses, a stripper, means on said stripper extending intzo said slots and means operable in said slots for latching said extending means to said base.

12 In a die for ornamentzing shoe parts, a base, a plate superposed upon at least a portion of said base, said platze having cutting elements mountzed thereon, a stripper, and quickly releasable-latching means common tzo said platze and said stripper for detachably securing said plate in itzs superposed relation and said stripper to said base, and for releasing said plate and stripper for complete removal from the base.

13. A die comprising a base, a cutter plate carried loy the base and having cutztzing elements mounted thereon, a stripper plate, means tzo support said stzrlpper plate in an operative relation to said cutzting elements, said cutting plate and stripper platze each being provided With means extendable into said base, and means common to said plates, movable intzo latching engagement witzh said extendable means.

14. In a die for ornamenting sl1oe parts, a base, a work support associatecl with said base, means adjacent the edge of the die and spaced outside the normal operating area thereof, to movably mount the work support on the base,

and additional means dis'postd intri0rly of the confines of the base and work support, with'r'espect to said first means, to exert a stripping pressure upon the work support during an ernamentzing operation, said pressure exeiting means being mounted on the base in disconnec'ted relation to said work supportz.

15.'In a die for ornamenting shoe parts, a base, awork supportz alss'ociated with said base, means adjacentz the edge of the die, and spaced outside the normal operating area thereof, to movably mount the work support 0n the base and additional means disposed interiorly of the confines of the base and work support, with respect to said first means, tzo exert a stripping pressure upon the work support durlng an ernamenting Operation, said pressure exerting means being mounted on the base in disconnected relation tc)- said work support, and means to quickly detach said work support from said base.

16. In a die for ornamenting shoe parts, a base, a work support associated with said base, means adjacent the edge cf the die, and spaced outside the normal operating area thereof, to movably mount the work support on the base, additional means disposed interiorly cf the sonfines of the base and work support, With respect to said first means, to exert a stripping pressure upon the work support during an ornamentzing operation, said pressure exerting means being mounted on the base in disconnected relation to said work Support, and means to detachably latzch said work support in operating position.

1'7. In a die for ornamenting shoe parts a base, a work support associated with said base, means positioned outside of the normal operating area thereof, to movably mount the work supportz on the base, and additional means disposed Within the confines 015 the normal operating area, between said work support and base, tzo exert a stripping pressure upon the work support during an ornamenting operation, said pressure exerting means being mountzed in disconneeted relation to said work support.

18. In a die for ornamenting shoe partzs, a base, a work support associated with said base, means positioned outside of the normal operating area thereof, to movab-ly mount the work support on the base, additional means disposed witzhin the confines 0f the normal operating area, between said work support and base, to exertz a stripping pressure upon the work support during an ornamenting operation, said pressure exertzing means being mounted in diaconnected relation tzo said work support and means to detachably latch said work support in operating position, whereby said support may be freely removed from the base and the pressure exertzing means.

19. A flat bed die of the type describecl comprising a base, a work support therefor, work ornamenting elements disposed upon said base, means mounting said work support upon said base for movement into and out of a spaced relation thereto and for movement relative t0 said ornamenting elements, said base having means providing free operation of said ornamentzing elementzs past the plane of the work support during movement thereof, and resilient means structurally free of said work support, mountzed in said base and engageable with the surface of the work support adjacent the base, to exert a stripping pressure thereon during an ornamenting operation.

ing movement thereof, resilient means structurally free cf said work support, mounted in said base and engageable with the surface cf the work support adjacent the base, to exert a stripping pressure thereon during an ornamenting operation, and means to quickly secure and detach said work support with respect to the base.

JOHN SCHNEIDER. 

